// @ts-nocheck
/**
 * 时间管理模块
 * 负责时间获取、格式化等功能
 */

export class TimeManager {
  constructor(config) {
    this.config = config;
  }

  /**
   * 获取当前时间信息
   * @param {Object} data 时间参数
   * @returns {Object} 时间信息
   */
  async getTime(data = {}) {
    try {
      const { timezone = 'Asia/Shanghai' } = data;
      
      // 获取当前时间戳
      const now = new Date();
      const timestamp = now.getTime();
      
      // 设置时区
      const timeInTimezone = new Date(now.toLocaleString("en-US", { timeZone: timezone }));
      
      // 提取时间组件
      const year = timeInTimezone.getFullYear();
      const month = timeInTimezone.getMonth() + 1;
      const day = timeInTimezone.getDate();
      const hour = timeInTimezone.getHours();
      const minute = timeInTimezone.getMinutes();
      const second = timeInTimezone.getSeconds();
      const millisecond = timeInTimezone.getMilliseconds();
      
      // 格式化函数
      const pad = (num, length = 2) => String(num).padStart(length, '0');
      
      // 主要返回值：精确到毫秒的时间格式
      const mainTime = `${pad(hour)}:${pad(minute)}:${pad(second)}.${pad(millisecond, 3)}`;
      
      // 多种格式化选项
      const formatted = {
        'HH:mm:ss.SSS': mainTime,
        'YYYY-MM-DD HH:mm:ss.SSS': `${year}-${pad(month)}-${pad(day)} ${mainTime}`,
        'YYYY-MM-DD': `${year}-${pad(month)}-${pad(day)}`,
        'HH:mm:ss': `${pad(hour)}:${pad(minute)}:${pad(second)}`,
        'HH:mm': `${pad(hour)}:${pad(minute)}`
      };
      
      return {
        success: true,
        action: 'time.get',
        data: {
          // 主要返回值
          time: mainTime,
          
          // 基础信息
          timestamp: timestamp,
          iso: now.toISOString(),
          timezone: timezone,
          date: `${year}/${month}/${day}`,
          
          // 时间组件
          year: year,
          month: month,
          day: day,
          hour: hour,
          minute: minute,
          second: second,
          millisecond: Math.floor(millisecond / 100) * 100, // 精确到百毫秒
          
          // 格式化选项
          formatted: formatted
        },
        timestamp: timestamp,
        responseTime: 1
      };
    } catch (error) {
      logger.error('[MCP Handler] 获取时间失败:', error);
      return {
        success: false,
        action: 'time.get',
        error: error.message,
        timestamp: Date.now()
      };
    }
  }

  /**
   * 格式化时间戳
   * @param {Object} data 格式化参数
   * @returns {Object} 格式化结果
   */
  async formatTime(data = {}) {
    try {
      const { 
        timestamp = Date.now(), 
        format = 'YYYY-MM-DD HH:mm:ss', 
        timezone = 'Asia/Shanghai' 
      } = data;
      
      // 创建日期对象
      const date = new Date(timestamp);
      
      // 设置时区
      const timeInTimezone = new Date(date.toLocaleString("en-US", { timeZone: timezone }));
      
      // 提取时间组件
      const year = timeInTimezone.getFullYear();
      const month = timeInTimezone.getMonth() + 1;
      const day = timeInTimezone.getDate();
      const hour = timeInTimezone.getHours();
      const minute = timeInTimezone.getMinutes();
      const second = timeInTimezone.getSeconds();
      const millisecond = timeInTimezone.getMilliseconds();
      
      // 格式化函数
      const pad = (num, length = 2) => String(num).padStart(length, '0');
      
      // 替换格式字符串
      let formattedTime = format
        .replace(/YYYY/g, year)
        .replace(/MM/g, pad(month))
        .replace(/DD/g, pad(day))
        .replace(/HH/g, pad(hour))
        .replace(/mm/g, pad(minute))
        .replace(/ss/g, pad(second))
        .replace(/SSS/g, pad(millisecond, 3));
      
      return {
        success: true,
        action: 'time.format',
        data: {
          formatted: formattedTime,
          original: timestamp,
          format: format,
          timezone: timezone,
          components: {
            year: year,
            month: month,
            day: day,
            hour: hour,
            minute: minute,
            second: second,
            millisecond: millisecond
          }
        },
        timestamp: Date.now(),
        responseTime: 1
      };
    } catch (error) {
      logger.error('[MCP Handler] 格式化时间失败:', error);
      return {
        success: false,
        action: 'time.format',
        error: error.message,
        timestamp: Date.now()
      };
    }
  }

  /**
   * 获取时间差
   * @param {Object} data 时间差参数
   * @returns {Object} 时间差信息
   */
  async getTimeDiff(data = {}) {
    try {
      const { start, end = Date.now(), unit = 'ms' } = data;
      
      if (!start) {
        throw new Error('缺少起始时间参数: start');
      }
      
      const startTime = new Date(start).getTime();
      const endTime = new Date(end).getTime();
      const diff = endTime - startTime;
      
      // 计算各种单位的时间差
      const diffInMs = diff;
      const diffInSeconds = diff / 1000;
      const diffInMinutes = diffInSeconds / 60;
      const diffInHours = diffInMinutes / 60;
      const diffInDays = diffInHours / 24;
      
      // 格式化时间差
      const formatDuration = (ms) => {
        const days = Math.floor(ms / (24 * 60 * 60 * 1000));
        const hours = Math.floor((ms % (24 * 60 * 60 * 1000)) / (60 * 60 * 1000));
        const minutes = Math.floor((ms % (60 * 60 * 1000)) / (60 * 1000));
        const seconds = Math.floor((ms % (60 * 1000)) / 1000);
        const milliseconds = ms % 1000;
        
        const parts = [];
        if (days > 0) parts.push(`${days}天`);
        if (hours > 0) parts.push(`${hours}小时`);
        if (minutes > 0) parts.push(`${minutes}分钟`);
        if (seconds > 0) parts.push(`${seconds}秒`);
        if (milliseconds > 0 && parts.length === 0) parts.push(`${milliseconds}毫秒`);
        
        return parts.length > 0 ? parts.join(' ') : '0毫秒';
      };
      
      // 根据单位返回结果
      let result;
      switch (unit) {
        case 'ms':
          result = diffInMs;
          break;
        case 's':
          result = diffInSeconds;
          break;
        case 'm':
          result = diffInMinutes;
          break;
        case 'h':
          result = diffInHours;
          break;
        case 'd':
          result = diffInDays;
          break;
        default:
          result = diffInMs;
      }
      
      return {
        success: true,
        action: 'time.diff',
        data: {
          diff: result,
          unit: unit,
          start: startTime,
          end: endTime,
          formatted: formatDuration(Math.abs(diffInMs)),
          isNegative: diff < 0,
          breakdown: {
            milliseconds: diffInMs,
            seconds: diffInSeconds,
            minutes: diffInMinutes,
            hours: diffInHours,
            days: diffInDays
          }
        },
        timestamp: Date.now(),
        responseTime: 1
      };
    } catch (error) {
      logger.error('[MCP Handler] 计算时间差失败:', error);
      return {
        success: false,
        action: 'time.diff',
        error: error.message,
        timestamp: Date.now()
      };
    }
  }

  /**
   * 获取时区信息
   * @param {Object} data 时区参数
   * @returns {Object} 时区信息
   */
  async getTimezoneInfo(data = {}) {
    try {
      const { timezone = 'Asia/Shanghai' } = data;
      
      const now = new Date();
      const utcTime = now.getTime();
      const localTime = new Date(now.toLocaleString("en-US", { timeZone: timezone })).getTime();
      const offset = (localTime - utcTime) / (1000 * 60 * 60); // 小时偏移
      
      // 常用时区列表
      const commonTimezones = [
        'Asia/Shanghai',
        'Asia/Tokyo',
        'Europe/London',
        'Europe/Paris',
        'America/New_York',
        'America/Los_Angeles',
        'UTC'
      ];
      
      const timezoneData = {};
      for (const tz of commonTimezones) {
        const time = new Date(now.toLocaleString("en-US", { timeZone: tz }));
        timezoneData[tz] = {
          time: time.toISOString(),
          local: time.toLocaleString(),
          offset: (time.getTime() - utcTime) / (1000 * 60 * 60)
        };
      }
      
      return {
        success: true,
        action: 'time.timezone',
        data: {
          current: timezone,
          offset: offset,
          utc: now.toISOString(),
          local: new Date(now.toLocaleString("en-US", { timeZone: timezone })).toISOString(),
          timezones: timezoneData
        },
        timestamp: Date.now(),
        responseTime: 1
      };
    } catch (error) {
      logger.error('[MCP Handler] 获取时区信息失败:', error);
      return {
        success: false,
        action: 'time.timezone',
        error: error.message,
        timestamp: Date.now()
      };
    }
  }
}
// @ts-nocheck
